\clearpage
\lhead{\emph{List of Abbreviations}}
\listofsymbols{ll}
{
%\textbf{MAP} & \textbf{M}ean \textbf{A}verage \textbf{P}recision \\
%\textbf{MRR} & \textbf{M}ean \textbf{R}eciprocal \textbf{R}ank \\
%\textbf{IR} & \textbf{I}nformation \textbf{R}etrieval \\
%\textbf{TIA} & \textbf{T}oine \textbf{I}s \textbf{A}wesome \\
%\textbf{SEK} & \textbf{S}oap \textbf{E}ater \textbf{K}irstine \\
%\textbf{ILL} & \textbf{I} \textbf{L}ove \textbf{L}amp \\
%\textbf{MNID} & \textbf{M}y \textbf{N}ose \textbf{I}s \textbf{D}ripping \\
%\textbf{LwfiD} & \textbf{L}egen -- {\bf w}ait {\bf f}or {\bf i}t -- {\bf D}ary!

%    \textbf{ACL}        & \textbf{A}ssociation of \textbf{C}omputational \textbf{L}inguists \\
%    \textbf{AP}         & \textbf{A}verage \textbf{P}recision \\
    \textbf{AUC}        & \textbf{A}rea \textbf{U}nder the \textbf{C}urve \\
    \textbf{CAPTCHA}    & \textbf{C}ompletely \textbf{A}utomated  \textbf{P}ublic \textbf{T}uring test to tell \textbf{C}omputers and\\ 
    ~                   & \textbf{H}umans \textbf{A}part \\
    \textbf{CBR}        & \textbf{C}ase-\textbf{B}ased \textbf{R}easoning \\
    \textbf{CF}         & \textbf{C}ollaborative \textbf{F}iltering \\
    \textbf{DOI}        & \textbf{D}igital \textbf{O}bject \textbf{I}dentifier \\
    \textbf{GBCF}       & \textbf{G}raph-\textbf{B}ased \textbf{C}ollaborative \textbf{F}iltering \\
    \textbf{HRI}        & \textbf{H}uman-\textbf{R}ecommender \textbf{I}nteraction \\
    \textbf{HTML}       & \textbf{H}yper-\textbf{T}ext \textbf{M}arkup \textbf{L}anguage \\
    \textbf{IB}         & \textbf{I}tem-\textbf{B}ased filtering\\
    \textbf{IF}         & \textbf{I}nformation \textbf{F}iltering \\
    \textbf{IMA}        & \textbf{I}nformation \textbf{M}anagement \textbf{A}ssistant \\
    \textbf{IR}         & \textbf{I}nformation \textbf{R}etrieval \\
    \textbf{ISBN}       & \textbf{I}nternational  \textbf{S}tandard \textbf{B}ook \textbf{N}umber \\
    \textbf{ISSN}       & \textbf{I}nternational \textbf{S}tandard \textbf{S}erial \textbf{N}umber \\
    \textbf{IT}         & \textbf{I}nformation \textbf{T}echnology \\
    \textbf{KL}         & \textbf{K}ullback-\textbf{L}eibler divergence \\
    \textbf{MAP}        & \textbf{M}ean \textbf{A}verage \textbf{P}recision \\
    \textbf{MRR}        & \textbf{M}ean \textbf{R}eciprocal \textbf{R}ank \\
    \textbf{PDF}        & \textbf{P}ortable \textbf{D}ocument \textbf{F}ormat \\
    \textbf{PLSA}       & \textbf{P}robabilistic \textbf{L}atent \textbf{S}emantic \textbf{A}nalysis \\
    \textbf{ROC}        & \textbf{R}eceiver-\textbf{O}perator \textbf{C}haracteristic \\
    \textbf{SGML}       & \textbf{S}tandard \textbf{G}eneralized \textbf{M}arkup \textbf{L}anguage \\
    \textbf{SSI}        & \textbf{S}et of \textbf{S}imilar \textbf{I}tems \\
    \textbf{SSU}        & \textbf{S}et of \textbf{S}imilar \textbf{U}sers \\
    \textbf{SVM}        & \textbf{S}upport \textbf{V}ector \textbf{M}achine \\
    \textbf{TBCF}       & \textbf{T}ag-\textbf{B}ased \textbf{C}ollaborative \textbf{F}iltering \\
    \textbf{TIBCF}       & \textbf{T}agging \textbf{I}ntensity-\textbf{B}ased \textbf{C}ollaborative \textbf{F}iltering \\
    \textbf{TOBCF}       & \textbf{T}ag \textbf{O}verlap-\textbf{B}ased \textbf{C}ollaborative \textbf{F}iltering \\
    \textbf{TREC}       & \textbf{T}ext \textbf{RE}trieval \textbf{C}onference \\
    \textbf{UB}         & \textbf{U}ser-\textbf{B}ased filtering \\
    \textbf{UCOV}       & \textbf{U}ser \textbf{COV}erage \\
    \textbf{URL}        & \textbf{U}niform \textbf{R}esource \textbf{L}ocator \\
}
